When you poll data sych as with these two types of modules only a single operation is consumed regardless of how many bundles were extracted. Now if you add another module right after the trigger it will run through each bundle. Depending on what your trying to do you may be able to aggreagate those bundles into an array. From there you can filter through the bundles or perform a batch operation if there is a module for the app your using.
Now unfortunately there are no instant triggers for google calendar. There is a push notification that can be sent but instead I changed the setting on the calendar to get an email notification. From there I use a mailhook to instantly get the notification into Make. Now if you aren’t setting up too many meetings this might be a most cost efficient way to moniter the calendar events.
Mailhooks can be used in the same way for your emails but seeing how you get hundreds of emails it might be better for the data to be polled in batches.
Hope this helps!